Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 5 - Think and Solve: 30


a. Newton's third law tells us that the two pucks feel the same force, but in opposite directions. Using Newton's second law (page 63), the acceleration of each puck is the (same) net force, divided by the (differing) mass. So the double-mass puck has half the acceleration of the other, for the same amount of time. Both pucks start from rest, so the heavier puck's change in speed, its final speed, is only half as much as the lighter puck's final speed. b. $ 0.2 m/s$. Use the result just derived.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.